Chemistry Matter, Periodic Table, Atomic Structure

What subatomic particles would you find in the nucleus of an atom?

• Protons only
• Protons and Neutrons
• Neutrons and Electrons
• Protons and Electrons 

Which subatomic particles contribute the most to the mass of an atom?

• Protons, Neutrons, Electrons
• Protons only
• Protons and Electrons
• Protons and Neutrons

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

Tags

NGSS.MS-PS1-1

Protons and Electrons balance the charge of an atom.

• True
• False

Tags

NGSS.HS-PS1-7

If an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom?

• 12 neutrons
• 12 electrons
• 12 protons
• 24 protons and neutrons

An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.

• 20
• 10
• 5
• 25

The particles of the atom you can find by knowing the atomic number.

• neutrons
• protons and electrons
• protons and neutrons
• atomic mass

Tags

NGSS.MS-PS1-1

The mass of one proton is greater than the mass of one...

• neutron
• electron

Tags

NGSS.MS-PS1-1

Letter D represents the ........ which contains (A) ...... and (B) ......

• protons, electrons, neutrons

• nucleus, neutrons, protons

• nucleus, protons, electrons

• shell, electrons, neutrons

Tags

NGSS.MS-PS1-1

What is the atomic mass and atomic number of the atom in the diagram?

• 9, 10

• 10, 9

• 19, 10

• 19, 9

Tags

NGSS.MS-PS1-1